Traveling to Shanghai, there are several preparations to make in ensuring a smooth transition for staying in the city.

1. Passport and Visa: Ensure that your passport has at least six months of validity beyond your intended stay in China. Depending on your nationality and the purpose of your visit, you may need to apply for an appropriate visa before arriving in Shanghai. 

2. Accommodation: Whether you plan to stay in a hotel, rent an apartment, or arrange temporary accommodation, it's advisable to have a confirmed booking to avoid any last-minute hassles.

3. Money: Familiarize yourself with the local currency, which is the Chinese yuan (RMB). It's recommended to have some local currency with you upon arrival for immediate expenses. 

4. Insurance: Obtain travel insurance that covers medical expenses or emergencies, trip cancellations, and other unforeseen circumstances. The insurance should include coverage for medical emergencies in China. If not, consider purchasing additional health insurance.

5. Vaccinations and Medications: Check if any specific vaccinations are recommended or required for travel to China. Consult with your healthcare provider to ensure you are up to date with routine vaccinations. If you take prescription medications, ensure you have an adequate supply for the duration of your stay.

6. Communication: Consider obtaining a local SIM card or an international roaming plan for your mobile phone to stay connected during your time in Shanghai. Familiarize yourself with popular messaging apps such as WeChat, which is widely used in China.

7. Transportation: Research transportation options in Shanghai, such as public transportation, taxi services, or car rentals, depending on your needs and preferences.

8. Cultural Etiquette and Customs: Take some time to learn about Chinese culture, customs, and basic etiquette to show respect and avoid any cultural misunderstandings during your stay.

9. Itinerary and Sightseeing: Plan your itinerary and research popular attractions, landmarks, and activities in Shanghai. This will help you make the most of your time in the city and ensure you don't miss out on must-see sites.